When greenhouses are measured over decades, not invoices
Source: HD.com
Reassessing greenhouse glazing through a 30-year lens Miriam shares that this longer-term perspective was central to a recent 30-year greenhouse glazing analysis conducted in Guatemala. "Polyfilm's replacement schedule transforms a 2026 glazing decision into a commitment to purchase labor at 2040 and 2050 prices," she notes.
"Polyfilm loses approximately 1–3% light transmission annually," she explains, adding that reduced light levels can directly influence greenhouse productivity and yield over time. "Over a 30-year lifespan, repeated polyfilm replacement can generate significant plastic waste, while ETFE systems require fewer material changes and are recyclable at end of life." As regulations around plastic disposal continue to evolve globally, these factors are increasingly being included in long-term operational planning.
One of their projects, a recently completed teaching greenhouse at Central Wyoming College , was designed not only as a growing space, but as a practical training environment for students studying regenerative agriculture and controlled environment agriculture (CEA). © Ceres Greenhouse Solutions Developed in collaboration with the University of Wyoming, the greenhouse supports year-round crop production, hydroponic systems, seedling propagation, and student research projects.
Why this matters: For operators, this is a water-management story. The useful signal is that direct substrate measurements can help cut drain loss materially without giving up yield or fruit quality, which is exactly the kind of controllable efficiency gain a facility can build on.
Frequently Asked Questions
Why does substrate sensing matter in free-drain strawberry systems?
Because drain percentage tells a grower what already happened, while substrate moisture and EC data show root-zone conditions directly. That makes it easier to cut water loss without guessing.
What is the operator takeaway from this trial?
If the thresholds are understood well enough, growers can reduce drain water materially while protecting yield and fruit quality, which makes sensing an operational tool instead of a reporting tool.
